Master cylinder



FIG. 1 is a perspective view of a master cylinder in accordance with thepresent invention;

FIG. 2 is a side view thereof, the opposite side view being a mirrorimage thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines and surface shading shown in all figures are forillustrative environmental purposes only and form no part of the claimeddesign. The broken lines immediately adjacent the shaded areas representthe boundaries of the claimed design and form no part of the claimeddesign.

The ornamental design for a master cylinder, as shown and described.